عَنْ أَبِي هُرَيْرَةَ رَضيَ اللهُ عنه: أَنَّهُ لَقِيَهُ النَّبِيُّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ فِي طَرِيقٍ مِنْ طُرُقِ الْمَدِينَةِ وَهُوَ جُنُبٌ، فَانْسَلَّ فَذَهَبَ فَاغْتَسَلَ، فَتَفَقَّدَهُ النَّبِيُّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ، فَلَمَّا جَاءَهُ قَالَ: «أَيْنَ كُنْتَ يَا أَبَا هُرَيْرَةَ؟» قَالَ: يَا رَسُولَ اللهِ، لَقِيتَنِي وَأَنَا جُنُبٌ فَكَرِهْتُ أَنْ أُجَالِسَكَ حَتَّى أَغْتَسِلَ، فَقَالَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ: «سُبْحَانَ اللهِ، إِنَّ الْمُؤْمِنَ لَا يَنْجُسُ».
Imepokelewa kutoka kwa Abuu Huraira -radhi za Mwenyezi Mungu ziwe juu yake-: Ya kwamba alikutana na Mtume rehema na amani ziwe juu yake katika barabara miongoni mwa barabara za mji wa Madina huku akiwa na janaba, akamkwepa na akaenda kuoga, Mtume rehema na amani ziwe juu yake akamtafuta hakumpata, alipomjia akasema: "Ulikuwa wapi ewe Abuu Huraira?" Akasema: Ewe Mjumbe wa Mwenyezi Mungu, ulikutana nami, nami nikiwa na janaba, sikufurahishwa kukaa na wewe mpaka nioge, akasema Mtume rehema na amani ziwe juu yake: "Sub-haana llaah, ametakasika Mwenyezi Mungu, hakika muumini hanajisiki".
Abu Hurayrah (may Allah be pleased with him) reported: The Prophet (may Allah's peace and blessings be upon him) met him on one of the roads of Madīnah while he was in a state of major ritual impurity. He sneaked away from him and went to take a bath. The Prophet (may Allah's peace and blessings be upon him) noticed his absence, and when he came back, he said: "Where were you, Abu Hurayrah?" He said: O Messenger of Allah, you met me while I was in a state of major ritual impurity, and I disliked to sit with you in that state until I had performed ghusl. The Messenger of Allah (may Allah's peace and blessings be upon him) said: "Glory be to Allah! The believer never becomes impure."
Janaba linamzuia mtu kuswali na kugusa msahafu na kukaa msikitini, na wala halizuii kukaa pamoja na Waislamu na kukutana nao, na wala mwenye janaba hawi najisi.
Usafi wa muumini akiwa hai au maiti.
Kuwaheshimu watu wenye heshima, na elimu, na utengefu, na kukaa nao kwa muonekano mzuri.
Hapa kuna sheria ya mfuasi kumuomba idhini ya kuondoka anayemfuata, kwani Mtume rehema na amani ziwe juu yake alimkemea Abuu Huraira radhi za Mwenyezi Mungu ziwe juu yake, kwa kuondoka kwake pasina yeye kujua, na hii ni kwa sababu kuomba ruhusa ni katika adabu nzuri.
Kusema: Sub-haana llaah, ametakasika Mwenyezi Mungu, wakati wa kustaajabu.
Kufaa mtu kusimulia mambo yake binafsi katika yale ya aibu, kwa ajili ya masilahi.
Kafiri ni najisi, lakini najisi yake si ya kuonekana, kwa sababu ya uchafu wa itikadi yake.
Amesema Nawawi: Na katika hadithi hii pia kuna adabu, ya kwamba msomi atakapoona kwa anayemfuata jambo analohofia kwake kwenda kinyume na usahihi basi amuulize, na amwambie lililo sahihi, na ambainishie hukumu yake, na Mwenyezi Mungu ndiye Mjuzi zaidi.