While writing interpretation of a Hadith, Imam Khomeini writes as following:
It is also narrated in the noble al-Kafi that Imam al-Baqir (A) said,
“The Messenger of Allah (S) once stood on the rock of Safa and addressing his kinsman said, “O descendents of Hashim! O children of ‘Abd al-Muttalib! I am the Apostle of Allah sent to you, and I having loving concern for you. Verily, my works belong to me and the works of each of you belong to him.
Do not say that ‘Muhammad is our kinsman and soon we will be let in wherever he enters.’ No, by God, O sons of ‘Abd al-Muttalib! My friends, from amongst you and the others, are none except the pious.
Let it be known to you that I will not recognize you on the Day of Resurrection [as one of my Ummah] when you come carrying the world [i.e. the works done by you for the love of the world) on your backs while other people come to the bearing the Hereafter [i.e. the works done by them in faith and for the life of the Hereafter).”