An-Nisa 4:43 يا ايها الذين امنوا لا تقربوا الصلاة وانتم سكارى حتى تعلموا ما تقولون ولا جنبا الا عابري سبيل حتى تغتسلوا وان كنتم مرضى او على سفر او جاء احد منكم من الغايط او لامستم النساء فلم تجدوا ماء فتيمموا صعيدا طيبا فامسحوا بوجوهكم وايديكم ان الله كان عفوا غفورا ٤٣

You who believe, do not come anywhere near the prayer if you are intoxicated, not until you know what you are saying; nor if you are in a state of major ritual impurity- though you may pass through the mosque- not until you have bathed; if you are ill, on a journey, have relieved yourselves, or had intercourse, and cannot find any water, then find some clean sand and wipe your faces and hands with it. God is always ready to pardon and forgive.