حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا مُحَمَّدُ بْنُ بَكْرٍ، حَدَّثَنَا عَبْدُ الْحَمِيدِ بْنُ جَعْفَرٍ، حَدَّثَنِي عُتْبَةُ بْنُ عَبْدِ اللَّهِ، عَنْ أَسْمَاءَ بِنْتِ عُمَيْسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم سَأَلَهَا ‏"‏ بِمَ تَسْتَمْشِينَ ‏"‏ ‏.‏ قَالَتْ بِالشُّبْرُمِ ‏.‏ قَالَ ‏"‏ حَارٌّ جَارٌّ ‏"‏ ‏.‏ قَالَتْ ثُمَّ اسْتَمْشَيْتُ بِالسَّنَا ‏.‏ فَقَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ لَوْ أَنَّ شَيْئًا كَانَ فِيهِ شِفَاءٌ مِنَ الْمَوْتِ لَكَانَ فِي السَّنَا ‏"‏ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ ‏.‏ يَعْنِي دَوَاءَ الْمَشْىِّ ‏.‏

Asma' bint 'Umais narrated that the Messenger of Allah (S.A.W) asked her what they used as a laxative. She said: "Shubrum" He said: "It is hot and too strong." She said:"Then I used Senna as a laxative." So the Prophet (S.A.W): "If there was anything that would have a cure for death in it, then it would have been Senna." Translation Not Available

Book Ref: Jamiya Tirmidhi Book 28 Hadith 2081
Web Ref:  Jamiya Tirmidhi Vol 4 Book 2 Hadith 2081