Hazrat Usama narrates that once I went to the service of the Prophet صلی اللہ علیہ وسلم and he appeared to be worried. I asked, "O Messenger of Allah! Is everything alright?" He replied, "Jibreel (peace be upon him) had promised to come to me, but he has not come for three days." Meanwhile, a dog passed by there. I put my hand on my head and I cried out. The Prophet صلی اللہ علیہ وسلم asked, "O Usama, what happened?" I submitted, "A dog has passed by." The Prophet صلی اللہ علیہ وسلم ordered it to be killed, and it was killed.