Sayyiduna Abu Dharr (may Allah be pleased with him) narrates that my beloved friend (peace and blessings of Allah be upon him) advised me regarding three things, which I will never abandon, insha’Allah. He (peace and blessings of Allah be upon him) advised me to perform the Duha prayer, to perform Witr before sleeping, and to fast three days every month.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب صلاة الضحى / 1221
Sayyiduna Abu Hurairah (may Allah be pleased with him) reports that my beloved friend (ﷺ) advised me regarding three things: to fast three days every month, to perform Witr before sleeping, and to offer two units of Duha (forenoon) prayer.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب صلاة الضحى / 1222