Faatimah (rahimahallah), the daughter of Imaam Ahmed (rahimahullah), narrates the following:

A fire once broke out in the home of my brother, Saalih. He had married just recently, and so his wife’s family had brought gifts to his home worth approximately four thousand Dinaars (gold coins). When the fire broke out, it destroyed all these gifts. When the fire was burning, Saalih said, “I am not grieved by anything that was burned, except for the garment of my father, Imaam Ahmed (rahimahullah). My father would perform salaah in this garment, and I thus kept it so that I may derive blessings from it and also perform salaah in it.” After the fire was extinguished, they entered the home and found the garment of Imaam Ahmed (rahimahullah) on a bed. The fire had consumed everything around the garment, but the garment itself was intact and unburned.

Ibnul Jowzi (rahimahullah) narrates a similar incident from the Head Qadhi, ‘Ali bin Husain Al-Zainabi. He mentioned that a fire once broke out in their home and destroyed everything, except for a kitaab which contained a few pages on which Imaam Ahmed (rahimahullah) had personally written.

(Siyar A’laam min Nubalaa vol. 11 pg. 230)