What should a man do who vowed to slaughter a ewe for his son for memorizing the Quran, but then it became pregnant and gave birth; should he slaughter the ewe itself, its offspring, or another one?

Vowing to slaughter with the intention of feeding is a vow of obedience that must be fulfilled. If someone vows to slaughter a specific sheep should their child memorize the Quran, and that sheep then gives birth, it is obligatory to slaughter both the sheep and its offspring according to the majority of scholars. The Malikis consider it commendable, while the Zahiris do not deem it obligatory. However, if the sheep is not specific, then any sheep may be slaughtered, and its offspring is not required to be slaughtered.