I say, and with God's success: Whoever is unable to fast for the expiation of murder should not give a substitute for fasting during their lifetime; because fasting is a substitute for emancipation, and it is not permissible to give a substitute for a substitute, which is the expiation. Rather, it should be recommended to give the expiation after death for fasting sixty days, and each day requires a dinar. Ibn Abidik said in Muntahā al-Jalīl: The one who is unable to fast is a substitute for another as in the expiation of oaths and murder. If he gives a substitute for himself during his lifetime, such as an elderly person who cannot fast, it is not valid in both expiations. However, if he bequeaths the expiation, it is valid in both cases. If his guardian donates on his behalf, it is not valid for the expiation of murder; because the obligation in it is emancipation, and donation is not valid for it. It is valid in the expiation of oaths, but only in clothing and feeding, not in emancipation. And God knows best.