Ibrahim (may Allah have mercy on him) said about the fetus: "Eat it, whether it has grown hair or not, as long as you do not find it repulsive."
Ya'qub said: It has been narrated from Hammad, from Ibrahim, that he said: "The slaughter of one soul is not the slaughter of two souls."
Ya'qub said: One of our companions narrated to us from Uthman bin Uthman that al-Batti said: "When Hammad spoke by his own opinion he was right, and when he said 'Ibrahim said', he erred."
Something similar to our view has been narrated to us from Sa'id bin al-Musayyab, al-Qasim bin Muhammad, al-Hasan al-Basri, Amir al-Sha'bi, Ata, Tawus, Mujahid, Nafi', Abd al-Rahman bin Abi Layla, Ikrimah and Amr bin Dinar.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19502