19 – ʿAbd Allah narrated to us; Yusuf ibn Musa narrated to us; ⦗40⦘ Wakiʿ narrated to us, from Sufyan, from Tariq, from Salim concerning the verse, “And worship your Lord until certainty comes to you” (Q 15:99). He said, “Certainty here means death.”

ʿAbd Allah also narrated to us that some of the sages said, “When certainty is weak, affliction slips in among those who seek the path; ⦗41⦘ but with strong certainty and sincere pursuit come earnestness and diligence, and through true fear and watchfulness the soul becomes detached from its desires.”