It wasnarrated that Asma' bint 'Umais said:
"The Messenger of Allah(ﷺ) said to me: 'What do you use as a laxative?' I said: 'TheShubrum (spurge – Euphorb).' He said: (It is) hot and powerful.'ThenI used senna as a laxative and he said: 'If anything were tocuredeath, it would be senna. Senna is a cure for death.'" (TR)
English reference (TR): Vol. 4, Book 31, Hadith 3461 (TR)
Arabic reference (TR): Book 31, Hadith 3589 (TR)