حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا هُشَيْمٌ، حَدَّثَنَا عُثْمَانُ بْنُ حَكِيمٍ، حَدَّثَنَا خَارِجَةُ بْنُ زَيْدِ بْنِ ثَابِتٍ، عَنْ يَزِيدَ بْنِ ثَابِتٍ، وَكَانَ، أَكْبَرَ مِنْ زَيْدٍ قَالَ خَرَجْنَا مَعَ النَّبِيِّ ـ صلى الله عليه وسلم ـ فَلَمَّا وَرَدَ الْبَقِيعَ فَإِذَا هُوَ بِقَبْرٍ جَدِيدٍ فَسَأَلَ عَنْهُ فَقَالُوا فُلاَنَةُ ‏.‏ قَالَ فَعَرَفَهَا وَقَالَ ‏"‏ أَلاَ آذَنْتُمُونِي بِهَا ‏"‏ ‏.‏ قَالُوا كُنْتَ قَائِلاً صَائِمًا فَكَرِهْنَا أَنْ نُؤْذِيَكَ ‏.‏ قَالَ ‏"‏ فَلاَ تَفْعَلُوا لاَ أَعْرِفَنَّ مَا مَاتَ فِيكُمْ مَيِّتٌ مَا كُنْتُ بَيْنَ أَظْهُرِكُمْ إِلاَّ آذَنْتُمُونِي بِهِ فَإِنَّ صَلاَتِي عَلَيْهِ لَهُ رَحْمَةٌ ‏"‏ ‏.‏ ثُمَّ أَتَى الْقَبْرَ فَصَفَّنَا خَلْفَهُ فَكَبَّرَ عَلَيْهِ أَرْبَعًا ‏.‏

Kharijahbin Zaid bin Thabit narrated that Yazid bin Thabit, who wasolderthan Zaid, said: “We went out with the Prophet (PBUH) and when wereached Al-Baqi’, we saw a new grave. He asked about it and theysaid:‘(It is) so-and-so (a woman).’ He recognized the name andsaid: ‘Whydid you not tell me about her?’ They said: ‘You weretaking a nap andyou were fasting, and we did not like to disturbyou.’ He said: ‘Donot do that; I do not want to see it happenagain that one of youdies, while I am still among you, and you donot tell me, for myprayer for him is a mercy.’ Then he went to thegrave and we lined upin rows behind him, and he said four Takbir(i.e. for the funeralprayer).” Translation Not Available

Book Ref: Sunan Ibn Majah Book 6 Hadith 1528
Web Ref:  Sunan Ibn Majah Vol 1 Book 6 Hadith 1528