It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "By the One who sent me with the truth! If the drop of semen over which Allah Almighty took the covenant were cast even upon a rock, Allah Almighty would create a human being from it."
No one narrated this hadith from Ibn Jurayj (may Allah have mercy on him) except Yahya bin Abi al-Dunya (may Allah have mercy on him), and Muhammad bin Mihran (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الميم / 6884
Hadith Gradingمحدثین:فيه من لم يعرفه الهيثمي
Hadith Takhrij«قال الهيثمي: فيه من لم أعرفه «مجمع الزوائد ومنبع الفوائد، ج 4، ص 296»»