Sayyiduna Abdullah (may Allah be pleased with him) says: "A Muslim has six rights over another Muslim in kindness: when he meets him, he greets him with salam; when he calls him, he answers him; when he sneezes, he responds to his sneeze; when he dies, he attends his funeral; he wishes him well in his absence; and he loves for him what he loves for himself."
Al-Tabarani recorded it and said: Abu Ja'far al-Farra' did not transmit it as marfu', while Abu Ishaq al-Sabi'i transmitted it as marfu'; but he did not give its chain up to Abu Ishaq al-Sabi'i. Its narrators are thiqat (trustworthy).