The Book on Jana''iz (Funerals)
كتاب الجنائز عن رسول الله صلى الله عليه وسلم
Read the English translation first, with the original Arabic directly underneath.
What Has Been Related About Performing Ghusl For The One Who Has Washed The Deceased
Anas bin Malik narrated that:
The Messenger of Allah said: "There is nothing that the two Guardian Angels raise to Allah that they have preserved in a day or night, and Allah finds good in the beginning of the scroll and in the end of the scroll, except that Allah Most High says: 'Bear witness that I have forgiven my servant for what is included in the scroll.'"
مَا مِنْ حَافِظَيْنِ رَفَعَا إِلَى اللَّهِ مَا حَفِظَا مِنْ لَيْلٍ أَوْ نَهَارٍ فَيَجِدُ اللَّهُ فِي أَوَّلِ الصَّحِيفَةِ وَفِي آخِرِ الصَّحِيفَةِ خَيْرًا إِلاَّ قَالَ اللَّهُ تَعَالَى أُشْهِدُكُمْ أَنِّي قَدْ غَفَرْتُ لِعَبْدِي مَا بَيْنَ طَرَفَىِ الصَّحِيفَةِ