It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her); she said: (I said:) O Messenger of Allah, shall I weep over Abu Salamah? He (peace and blessings be upon him) said: "Do not do so, for whatever the family of the deceased pray for, they are granted."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20130