The one condition on the prayer
Short enough to be missed.
لاَ تُقْبَلُ صَلاَةُ أَحَدِكُمْ إِذَا أَحْدَثَ حَتَّى يَتَوَضَّأَ
Lā tuqbalu ṣalātu aḥadikum idhā aḥdatha ḥattā yatawaḍḍaʾ
The prayer of any of you is not accepted once he breaks his state of purity, until he performs ablution.
Where this comes from
Not invalid, not incomplete. Not accepted. It is one of the few places where a condition is put on the prayer in that word, and the fix given for it takes two minutes.
The full narration
Hammam b. Munabbih who is the brother of Wahb b. Munabbih said:This is what has been transmitted to us by Abu Huraira from Muhammad, the Messenger of Allah (ﷺ) and then narrated a hadith out of them and observed that the Messenger of Allah (ﷺ) said: The prayer of none amongst you would be accepted in a state of impurity until he performs ablution
Source
Ṣaḥīḥ Muslim · 537
- Agreed upon as authentic (al-Bukhārī / Muslim)