It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that once Jibreel (peace be upon him) said to the Prophet (peace and blessings be upon him): "If only you had seen me at that time when I was filling Pharaoh's mouth with black mud from the sea, so that the mercy of Allah would not come to his aid."
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2820
Hadith Gradingحکم دارالسلام:إسناده ضعيف، على بن زيد ضعيف، ويوسف بن مهران لم يرو عنه غير على بن زيد، وهو لين الحديث، والأصح وقفه