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 the black mud of the sea."
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2203
Hadith Gradingحکم دارالسلام:إسناده ضعيف، لضعف على بن زيد و يوسف بن مهران لين الحديث