Al-Albani commented: “This report implies that it is permissible to pray for a long life for a non-Muslim, and all the more so for a Muslim. However, it must be

Sheikh Muhammad ibn Uthaymeen, may Allāh have mercy on him, stated: “There is a scholarly difference of opinion regarding offering condolences to a non-Muslim who has lost a relative or friend. Some scholars hold it to be prohibited, while others permit it. Some differentiate, saying that if doing so brings benefit—such as fostering hope of their accepting Islam or preventing harm that cannot be avoided otherwise—then it is permissible. Otherwise, it is prohibited. The stronger opinion is that if offering condolences implies honouring or showing undue respect to the non-Muslim, it is prohibited. Otherwise, it depends on whether there is a beneficial purpose.” [Fatāwā fī Aḥkām al-Janāʾiz (p. 353, Question No. 317)] The Permanent Committee for Scholarly Research and Ifta’ issued a fatwa stating: “If the purpose of offering condolences is to encourage non-Muslims to embrace Islam, it is permissible, as this aligns with the objectives of the Sharī'ah. Likewise, if it serves to ward off harm from them or from others, it is allowed, since general public interests in Islam may justify tolerating certain minor harms.” [Fatāwā al-Lajnah ad-Dāʾimah lil-Buḥūth al-ʿIlmiyyah wa al-Iftāʾ (9/132)]