They all transmit from Muḥammad ibn Jaʿfar with absolute certainty that Anas answered, “Yes,” leaving no room for doubt. The reliable narrators who report it thus are:

The first: ʿUthmān ibn Saʿīd al-Dārimī, a trustworthy, firmly grounded ḥāfiẓ and leading scholar.¹ The wording of his report is: “…from Muḥammad ibn Kaʿb who said: I came to Anas ibn Mālik during Ramadan while he was about to set out on a journey. His mount had been saddled, he had put on his travel clothes, and sunset was drawing near. He called for food, ate from it, and then mounted. I said to him, ‘Is this the Sunnah?’ He replied, ‘Yes.’” Al-Bayhaqī recorded it in al-Sunan al-Kubrā 4/247.

The second: Ismāʿīl ibn Isḥāq ibn Sahl, deemed truthful (ṣadūq) by Ibn Abī Ḥātim (1/1/158). His wording is identical to al-Dārimī’s. Al-Dāraqutnī brought it in his work (p. 241), and the shaykh himself attributes it to al-ʿIrāqī—an odd stance, for he leaves the report without comment even though it is authentic.