Sahih Muslim 2217 a
Abu Sa'id Khudri reported that a person came to Allah's Apostle (ﷺ) and told him that his brother's bowels were loose. Thereupon Allah's Messenger (ﷺ) said:
Give him honey. So he gave him that and then came and said: I gave him honey but it has only made his bowels more loose. He said this three times; and then he came the fourth time, and he (the Holy Prophet) said: Give him honey. He said: I did give him, but it has only made his bowels more loose, whereupon Allah's Messenger (ﷺ) said: Allah has spoken the truth and your brother's bowels are in the wrong. So he made him drink (honey) and he was recovered.
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، وَمُحَمَّدُ بْنُ بَشَّارٍ، - وَاللَّفْظُ لاِبْنِ الْمُثَنَّى - قَالاَ حَدَّثَنَا 
 مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، عَنْ أَبِي الْمُتَوَكِّلِ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، قَالَ جَاءَ
 رَجُلٌ إِلَى النَّبِيِّ صلى الله عليه وسلم فَقَالَ إِنَّ أَخِي اسْتَطْلَقَ بَطْنُهُ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى
 الله عليه وسلم ‏"‏ اسْقِهِ عَسَلاً ‏"‏ ‏.‏ فَسَقَاهُ ثُمَّ جَاءَهُ فَقَالَ إِنِّي سَقَيْتُهُ عَسَلاً فَلَمْ يَزِدْهُ إِلاَّ
 اسْتِطْلاَقًا ‏.‏ فَقَالَ لَهُ ثَلاَثَ مَرَّاتٍ ثُمَّ جَاءَ الرَّابِعَةَ فَقَالَ ‏"‏ اسْقِهِ عَسَلاً ‏"‏ ‏.‏ فَقَالَ لَقَدْ سَقَيْتُهُ
 فَلَمْ يَزِدْهُ إِلاَّ اسْتِطْلاَقًا ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ صَدَقَ اللَّهُ وَكَذَبَ بَطْنُ
 أَخِيكَ ‏"‏ ‏.‏ فَسَقَاهُ فَبَرَأَ ‏.‏