" لاَ يَمُوتُ أَحَدٌ مِنَ الْمُسْلِمِينَ فَيُصَلِّي عَلَيْهِ أُمَّةٌ مِنَ النَّاسِ فَيَبْلُغُوا أَنْ يَكُونُوا مِائَةً فَيَشْفَعُوا إِلاَّ شُفِّعُوا فِيهِ "
It was narrated from 'Aishah that the Prophet said: "No Muslim dies and a group of people whose number reaches one hundred offers the funeral prayer for him, interceding fro him, but their intercession for him will be accepted."