How sound is the narration: "I have never seen a foot resemble another as much as the foot of the Prophet (peace and blessings be upon him) resembled the foot of Ibrahim (peace be upon him), which we used to find at the Maqam," from Abu Jahm ibn Hudhayfah?

We have not found the saying, "This foot is from that foot which is at the Maqam," attributed to Abu al-Jahm ibn Hudhayfah. Some scholars have attributed it to Kurz ibn 'Alqamah al-Khuza'i without a firm chain of transmission. As for the similarity of the Prophet’s foot, peace and blessings be upon him, to the foot of Abraham, peace be upon him, it has been mentioned in several narrations:

First, the Hadith of the Isra’ (Night Journey) narrated by Al-Bukhari and Muslim, in which the Prophet, peace and blessings be upon him, said: "And I saw Abraham, and I am the most similar of his children to him," in a general sense.

Second, what Ahmad and Ibn Majah narrated from Ibn Abbas regarding a soothsayer who saw the footprint of the Prophet, peace and blessings be upon him, and said that it was most similar to the footprint at the Maqam, but its chain of transmission is weak.

Third, what Ibn Sa'd narrated, in which some people from Banu Mudlij said to Abd al-Muttalib: "Take good care of him, for we have not seen a foot more similar to the foot at the Maqam than his." These are mursal (disconnected) narrations, and their chain of transmission includes Al-Waqidi, who is abandoned.

The Hadith of the Isra’ remains sufficient proof that the Prophet, peace and blessings be upon him, was the most similar of people to Abraham, peace be upon him.