It is narrated from Sayyiduna Abu Layla (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) was asked about the foetus (the young found in an animal's belly), and he (peace and blessings be upon him) said: "Its slaughter is the slaughter of its mother."
This hadith is narrated from Ibn Abi Layla (may Allah have mercy on him) only with this chain, and Hisham bin Ammar (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الميم / 6721
Hadith Gradingمحدثین:إسناده ضعيف جدًّا، فيه حلبس بن محمد متروك
Hadith Takhrij«قال الهيثمي: وفيه حلبس بن محمد وهو متروك «مجمع الزوائد ومنبع الفوائد، ج 4، ص 35»»