صحيح الادب المفرد
Sahih al-Adab al-Mufrad
Part Four: Ahadith 751 to 999
باب كيف أنت ؟
Chapter on "How Are You?"
Hadith Number: 866
866/1132 (صحيح موقوفا، وثبت مرفوعا) عن انس بن مالك: انه سمع عمر بن الخطاب رضي الله عنه، وسلم عليه رجل فرد السلام، ثم سال عمر الرجل: كيف انت؟ فقال: احمد الله إليك، فقال عمر:"هذا الذي اردت منك".
866/1132 (Authentic as mawquf, and established as marfu‘) from Anas ibn Malik: He heard Umar ibn al-Khattab, may Allah be pleased with him, and a man greeted him with salam, so he returned the greeting. Then Umar asked the man: How are you? The man replied: I praise Allah to you. Umar said: "This is what I wanted from you."