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Wallahi: meaning, Arabic and how oaths are treated

The Arabic, what the words mean, and what the hadith and the Quran say about oaths.

By Haroon AliSources checked 3 November 2026

We explain and attribute; we do not issue fatwas.

The short answer

Wallahi means "by Allah", used in taking an oath. Sahih al-Bukhari 6663 records 'Aisha, may Allah be pleased with her, saying that the verse beginning "Allah will not hold you to account for the unintended" was revealed about the words "no, by Allah" and "yes, by Allah". Quran 5:89 distinguishes unintentional oaths from deliberately contracted oaths.

How is Wallahi written in Arabic?

Sahih al-Bukhari 6663

وَاللهِ

wa-llāhi

By Allah

To copy and paste the Arabic, use the button under it.

ExpressionMeaning in these examples
WallahiBy Allah
No, wallahiNo, by Allah
Yes, wallahiYes, by Allah

The two examples come from 'Aisha's explanation in Sahih al-Bukhari 6663: لَا وَاللهِ، وَبَلَى وَاللهِ, "no, by Allah" and "yes, by Allah". They illustrate the wording she discusses. The table does not decide the legal effect of every similar sentence.

Grade: sahih by collection convention. The text is in Sahih al-Bukhari. That grade is the collection's convention, not a grader's verdict on this chain.

1AuthenticSahih al-Bukhari 6663

What does Wallah mean?

Wallah is another English spelling of the same expression, which people search for as Wallahi. The Arabic in the hadith identifies what is meant here. For an actual statement, keep the words the speaker used rather than deciding its effect from an English spelling alone.

Inshallah is a different expression. It means "if Allah wills" and is said about plans. See Inshallah, and Mashallah, which uses the same verb.

What does the hadith say about taking an oath?

In Sahih al-Bukhari 6646, Ibn 'Umar, may Allah be pleased with him, reports that the Prophet Muhammad, peace be upon him, came upon 'Umar ibn al-Khattab, may Allah be pleased with him, while he was swearing by his father. The Prophet said that Allah forbids you to swear by your fathers, and that whoever swears should swear by Allah or keep silent.

مَنْ كَانَ حَالِفًا فَلْيَحْلِفْ بِاللهِ، أَوْ لِيَصْمُتْ

Grade: sahih by collection convention. As with 6663, the sahih grade is the collection's convention for Sahih al-Bukhari, not a grader's verdict.

2AuthenticSahih al-Bukhari 6646

Someone who swears is told to swear by Allah or keep silent. The report does not say that adding wallahi makes a statement true, or that an oath settles a disagreement about facts.

What do the verses say about unintended oaths?

Two verses speak of them. Al-Baqarah 2:225 says Allah does not take people to task for what is unintended in their oaths, but does take them to task for what their hearts have earned.

لَّا يُؤَاخِذُكُمُ ٱللَّهُ بِٱللَّغْوِ فِىٓ أَيْمَـٰنِكُمْ وَلَـٰكِن يُؤَاخِذُكُم بِمَا كَسَبَتْ قُلُوبُكُمْ ۗ وَٱللَّهُ غَفُورٌ حَلِيمٌ

Al-Baqarah 2:225Allah will not take you to task for that which is unintentional in your oaths. But He will take you to task for that which your hearts have garnered. Allah is Forgiving, Clement.

Quran 5:89 distinguishes unintentional oaths from deliberately contracted oaths.

لَا يُؤَاخِذُكُمُ ٱللَّهُ بِٱللَّغْوِ فِىٓ أَيْمَـٰنِكُمْ وَلَـٰكِن يُؤَاخِذُكُم بِمَا عَقَّدتُّمُ ٱلْأَيْمَـٰنَ ۖ فَكَفَّـٰرَتُهُۥٓ إِطْعَامُ عَشَرَةِ مَسَـٰكِينَ مِنْ أَوْسَطِ مَا تُطْعِمُونَ أَهْلِيكُمْ أَوْ كِسْوَتُهُمْ أَوْ تَحْرِيرُ رَقَبَةٍ ۖ فَمَن لَّمْ يَجِدْ فَصِيَامُ ثَلَـٰثَةِ أَيَّامٍ ۚ ذَٰلِكَ كَفَّـٰرَةُ أَيْمَـٰنِكُمْ إِذَا حَلَفْتُمْ ۚ وَٱحْفَظُوٓا۟ أَيْمَـٰنَكُمْ ۚ كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمْ ءَايَـٰتِهِۦ لَعَلَّكُمْ تَشْكُرُونَ

Al-Ma'idah 5:89Allah will not take you to task for that which is unintentional in your oaths, but He will take you to task for the oaths which you swear in earnest. The expiation thereof is the feeding of ten of the needy with the average of that wherewith you feed your own folk, or the clothing of them, or the liberation of a slave, and for him who finds not (the wherewithal to do so) then a three days' fast. This is the expiation of your oaths when you have sworn; and keep your oaths. Thus Allah expounds to you His revelations in order that you may give thanks.

In Sahih al-Bukhari 6663, 'Aisha says what the verse beginning "Allah will not hold you to account for the unintended" was revealed about: the words "no, by Allah" and "yes, by Allah". The text quotes only those opening words, which are the same in 2:225 and 5:89. It does not say that every casual utterance is exempt from an oath, and this page gives no ruling on habitual or joking use of wallahi.

For your own words, give the exact sentence to a scholar you trust.

What does the Quran say about the expiation of oaths?

Al-Ma'idah 5:89 names the expiation, or kaffarah, of oaths: feeding ten needy people from the average of what you feed your own families, or clothing them, or freeing a slave. For a person who does not find the means for these, it gives a fast of three days.

For the food, the verse names a standard, the average of what you feed your own families, rather than a fixed quantity. Questions about which oaths this covers, how repeated statements are treated and how to carry out the expiation need a scholar's assessment.

Can Christians say Wallahi?

In the hadith examples the words mean "by Allah". That explains what they say. Whether a non-Muslim's use of them is an oath under Islamic law is a separate question. The sources on this page cover the words and the verses, not a ruling for non-Muslims, so this page does not answer it.

Growing up, wallahi was how my friends and I ended every argument about football. One day my mum heard me say it about something silly and asked whether I would really swear by Allah over that. I did not have an answer, and I started saying it less.

Haroon Alistudent of knowledge

Try it: what would you say?

Three short questions. Pick an answer; each one explains itself.

  1. 1What does "wallahi" mean?

    Answer: By Allah. Wallahi is the oath "by Allah". Inshallah is the one that means "if Allah wills". Source 1

  2. 2Which verse names the expiation of oaths?

    Answer: Al-Ma'idah 5:89. 5:89 names feeding, clothing or freeing, and fasting for one who lacks the means. 2:225 speaks of what is unintended in your oaths.

  3. 3Ibn 'Umar reports that the Prophet found 'Umar swearing by his father. What did the Prophet tell him?

    Answer: To swear by Allah or keep silent. The report says that whoever swears should swear by Allah or keep silent. Source 2

Questions people ask

Can non-Muslims say Wallahi?

This page does not give a ruling for non-Muslims. It explains the words, which mean "by Allah" in the hadith examples, and the verses on oaths. A question about a particular speaker needs a scholar you trust.

What is the difference between Wallahi and Inshallah?

Wallahi is an oath, "by Allah". Inshallah means "if Allah wills" and is said about plans.

What does Wallah mean?

Wallah is another English spelling of the same expression, wallahi. In the hadith examples it means "by Allah".

Sources

Every claim on this page comes from one of these. Gradings are reported with the scholar's name; we do not grade hadith ourselves.

  1. 1

    'Aisha said that the verse beginning 'Allah will not hold you to account for the unintended' was revealed about the words 'No, by Allah' and 'Yes, by Allah'.

    Sahih al-Bukhari 6663 Book of Oaths and Vows (Kitab al-Aiman wal-Nudhur), chapter: 'Allah will not hold you to account for what is unintentional in your oaths'

    Authentic: in Sahih al-Bukhari

  2. 2

    Ibn 'Umar reports that the Prophet Muhammad, peace be upon him, met 'Umar ibn al-Khattab swearing by his father, and said that Allah forbids swearing by your fathers, and that whoever swears should swear by Allah or keep silent.

    Sahih al-Bukhari 6646 Book of Oaths and Vows (Kitab al-Aiman wal-Nudhur), chapter: 'Do not swear by your fathers'

    Authentic: in Sahih al-Bukhari

  3. Q

    Quran Arabic for Al-Baqarah 2:225 and Al-Ma'idah 5:89, and their English.

    Tanzil Project Uthmani text, CC BY 3.0. English: adapted from Marmaduke Pickthall's translation (1930), modernised and checked against modern translations.

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