Abu Juhayfa reported,

The Prophet ﷺ established a bond of brotherhood between Salman and Abu Darda. Salman once visited Abu Darda and saw Umm Darda wearing shabby clothes.He asked her, "What is the matter with you?"She replied, "Your brother Abu Darda has no interest in the things of this world."Then Abu Darda came and prepared food for him, and said, "Eat."Salman said, "I am fasting."Abu Darda said, "I will not eat until you eat."So he ate. When night came, Abu Darda got up to pray.Salman said, "Sleep."So he slept. Then he got up again to pray, and Salman said, "Sleep."When the last part of the night arrived, Salman said, "Get up now."So they both prayed. Then Salman said to him, "Your Lord has a right over you, your soul has a right over you, and your family has a right over you. So give each one who has a right his due."Abu Darda then went to the Prophet ﷺ and mentioned this to him, and the Prophet ﷺ said, "Salman has spoken the truth."

Azami 4419

Sahih

عن عون بن أبي جحيفة، عن أبيه، قال

آخى النبي ﷺ بين سلمان وأبي الدرداء، فزار سلمان أبا الدرداء، فرأى أم الدرداء متبذلة، فقال لها: ما شأنك؟ قالت: أخوك أبو الدرداء ليس له حاجة في الدنيا. فجاء أبو الدرداء فصنع له طعاما، فقال له: كل. قال: فإني صائم. قال: ما أنا بآكل حتى تأكل. قال: فأكل. فلما كان الليل ذهب أبو الدرداء يقوم، قال: نم فنام. ثم ذهب يقوم، فقال: نم. فلما كان من آخر الليل قال سلمان: قم الآن، فصليا. فقال له سلمان: إن لربك عليك حقا، ولنفسك عليك حقا، ولأهلك عليك حقا، فأعط كل ذي حق حقه. فأتى النبي ﷺ فذكر ذلك له، فقال له النبي ﷺ: صدق سلمان.

الأعظمي 4419صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Fasting
Chapter
Voluntary fasting and encouragement to do it
Section
Whoever is invited to a meal and breaks his fast, there is no making up required of him
Numbering
Jami al-Kamil 4419 (2nd edition)
Azami 4419