Ibn Kathir remarks in his Tafsir (2/193), after citing the report from Ibn Jarir, that none of the compilers of the six canonical collections recorded it, even though they were aware of it. Imam Ahmad (4/240–241) and al-Tirmidhi (nos. 3535–3536) transmit, through the route of Zurayn Hubaysh, that he said: “I came to Safwan ibn Assal al-Muradi to ask him about wiping over leather socks …” In the same hadith the Prophet said: “On the western side there is a gate whose width is a journey of seventy—or forty—years; God opened it for repentance on the day He created the heavens and the earth, and He will not close it until the sun rises through it. That is the meaning of His words: ‘On the day when some of the signs of your Lord arrive, no soul will benefit from its faith’ (Q 6:158).” Its chain is hasan; Ibn Hibban declared it sahih (no. 186); al-Tirmidhi graded it hasan sahih; it is also found in Sunan Ibn Majah (4070). Imam Ahmad (no. 1671) likewise narrates with a hasan chain, from Abdullah ibn al-Saʻdi, that the Prophet said: “Hijra does not cease as long as the enemy is fighting.” Muʻawiya, ʻAbd al-Rahman ibn ʻAwf, and ʻAbdullah ibn ʻAmr ibn al-ʻAs added: “The Prophet said: Hijra is of two kinds: one is to abandon sinful acts, and the other is to migrate to God and His Messenger. Hijra will not end so long as repentance is accepted, and repentance remains acceptable until the sun rises from the west. Once it rises, every heart is sealed with what it contains and human deeds are brought to a close.” (1) Abu al-Fadl Salih ibn Ahmad ibn Muhammad al-Hamadhani, a long-lived hadith scholar; author of Tabaqat al-Hamadhaniyyin; d. 384 AH/994 CE. Sources: Tadhkirat al-Huffaz 3/985–986; Tarikh Baghdad 1/408; al-Muntazam 6/239; al-Ibar 2/173; Shadharat al-Dhahab 2/280. (2) Al-Ibar (2/173) misprints his name as “Fayruz.” (3) Pronounced with open alif, silent nun, open mim, and kasra on the final taʾ (anmati). The nisba denotes a dealer in anmat—large woven carpets spread on the floor. See al-Ansab 1/376.