عَنْ أَبِي هُرَيْرَةَ رضي الله عنه قَالَ: قَالَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ: «إِذَا وَجَدَ أَحَدُكُمْ فِي بَطْنِهِ شَيْئًا، فَأَشْكَلَ عَلَيْهِ أَخَرَجَ مِنْهُ شَيْءٌ أَمْ لَا، فَلَا يَخْرُجَنَّ مِنَ الْمَسْجِدِ حَتَّى يَسْمَعَ صَوْتًا، أَوْ يَجِدَ رِيحًا».
Imepokewa kutoka kwa Abuu Huraira -Radhi za Allah ziwe juu yake- amesema: Amesema Mtume -Rehema na amani ziwe juu yake-: "Atakapo hisi mmoja wenu chochote tumboni kwake, akapata wasi wasi, je kuna chochote kimemtoka au la?, basi asitoke msikitini mpaka asikie sauti, au anuse harufu".
Abu Hurayrah (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said: "If one of you feels something in his stomach and doubts whether he released some wind or not, he should not leave the mosque unless he hears a sound or smells an odor."
Hadithi hii ni msingi katika misingi ya Uislamu, na ni kanuni miongoni mwa kanuni za kisheria, nayo ni; Yakini haiondoki kwa shaka, na asili ni kubaki hali iliyokuwa kama ilivyokuwa, mpaka mtu apate uhakika wa kinyume chake.
Shaka haiathiri katika twahara, na mswaliji ataendelea kubaki katika twahara yake madama hajapata uhakika wa hadathi (kutengukwa udhu).