Sunan Ibn Majah, Chapter: Chapters Regarding Funerals

"When Ibrahim, the son of the Messenger of Allah (saw), died, the Messenger of Allah (saw) wept. The one who was consoling him, either Abu Bakr or Umar, said to him: 'You are indeed the best of those who glorify Allah with what is due to him.' The Messenger of Allah (saw) said: 'The eye weeps and the heart grieves, but we do not say anything that angers the Lord. Were it not that death is something that inevitably comes to all, and that the latter will surely join the former, then we would have been more than we are, verily we grieve for you.'" Hasan