مُحَمَّدُ بْنُ يَعْقُوبَ عَنْ عَلِيِّ بْنِ إِبْرَ اهِيمَ عَنْ أَ بِيهِ عَنِ اِبْنِ أَبِي عُمَيْرٍ عَنِ اِبْنِ أُذَيْنَةَ قَالَ: كَتَبْتُ إِ لَى أَ بِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ أَسْأَلُهُ مَا حَدُّ اَلْمَرَ ضِ اَلَّذِي يُفْطِرُ صَاحِبُهُ وَ اَلْمَرَضِ اَلَّذِي يَدَ عُ صَاحِبُهُ اَلصَّلاَةَ مِنْ قِيَا مٍ فَقَالَ » »بَلِ اَلْإِنْسٰانُ عَلىٰ نَفْسِهِ بَصِيرَةٌ« « وَ قَالَ »ذَاكَ إِلَيْهِ هُوَ أَعْلَمُ بِنَفْسِهِ«.
Muhammad ibn Yaqub, from Ali ibn Ibrahim, from his father, from Ibn Abi Umayr, from Ibn Udhayna, who said: I (narrator) wrote to Abu Abdillah (a.s), peace be upon him, asking Imam (a.s): “What is the limit of the illness whose possessor breaks the fast, and the illness whose possessor leaves prayer while standing?” Imam (a.s) said: “Rather, man is a witness over himself,” And Imam (a.s) said: “That is up to him; he is more knowledgeable of himself.”