Inviting a kafir and accepting his invitation
Question
Question: What is the ruling on a Muslim accepting the invitation of a Muslim — that is, does it have the rank of wajib, or of an emphasized sunna, or of a non-emphasized sunna, or of mustahabb? Is rejecting an invitation without an excuse a sin or not? And is there any detail regarding the excuse — that is, a strong excuse and a weak excuse?
Answer
Accepting an invitation that accords with the Shari‘a is an emphasized sunna; rejecting it without an excuse is abandoning the sunna, and its status depends precisely on the strength or weakness of the excuse. Inviting a kafir and accepting his invitation out of the heart’s inclination is prohibited, whereas in view of Shari‘a interests (masalih)
Source: Fatawa Mahmudiyya
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