Miqdam bin Ma’dikarib, may Allah be pleased with him, narrates from the Prophet, peace and blessings be upon him, that he said: "When a man loves his (Muslim) brother, he should inform him that he loves him." Its chain is good. Narrated by Abu Dawood and Tirmidhi.
Hadith Referenceمشكوة المصابيح / كتاب الآداب / 5016
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:إسناده حسن
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «إسناده حسن، رواه أبو داود (5124) و الترمذي (2392 ا وقال: غريب)»