The Prophet ﷺ established a bond of brotherhood between Salman and Abu al-Darda. Salman paid a visit to Abu al-Darda and found Umm al-Darda dressed in shabby clothes and asked: "What's the matter?" She replied, "Your brother, Abu al-Darda is not interested in the luxuries of this world."

In the meantime Abu al-Darda came and prepared a meal for him (Salman), and said to him, "˹You go ahead and˺ eat for I am fasting." Salman said, "I am not going to eat, unless you eat." So Abu al-Darda ate. When it was nighttime, Abu ad-Darda got up ˹for the night prayer˺. Salman told him, "Sleep," and he slept. Again Abu  al-Darda got up ˹for the prayer˺, and Salman said, "Sleep." When it was the last part of the night, Salman said to him, "Get up now." So both of them offered their prayers. 

Salman said to Abu al-Darda, "Your Lord has a right on you, and your body has a right on you, and your family has a right on you. So you should give the rights of all those who have a right on you. Later on Abu al-Darda visited the Prophet ﷺ and mentioned that ˹incident˺ to him. The Prophet, said, "Salman has spoken the truth."

آخَى النَّبِيُّ ﷺ بَيْنَ سَلْمَانَ وَأَبِي الدَّرْدَاءِ، فَزَارَ سَلْمَانُ أَبَا الدَّرْدَاءِ، فَرَأَى أُمَّ الدَّرْدَاءِ مُتَبَذِّلَةً، فَقَالَ لَهَا: «مَا شَأْنُكِ؟» قَالَتْ: أَخُوكَ أَبُو الدَّرْدَاءِ لَيْسَ لَهُ حَاجَةٌ فِي الدُّنْيَا. 

فَجَاءَ أَبُو الدَّرْدَاءِ فَصَنَعَ لَهُ طَعَامًا، فَقَالَ: كُلْ فَإِنِّي صَائِمٌ، قَالَ: مَا أَنَا بِآكِلٍ حَتَّى تَأْكُلَ فَأَكَلَ، فَلَمَّا كَانَ اللَّيْلُ ذَهَبَ أَبُو الدَّرْدَاءِ يَقُومُ، فَقَالَ: نَمْ فَنَامَ، ثُمَّ ذَهَبَ يَقُومُ، فَقَالَ: نَمْ، فَلَمَّا كَانَ آخِرُ اللَّيْلِ، قَالَ سَلْمَانُ: قُمِ الْآنَ، قَالَ: فَصَلَّيَا، 

فَقَالَ لَهُ سَلْمَانُ: إِنَّ لِرَبِّكَ عَلَيْكَ حَقًّا، وَلِنَفْسِكَ عَلَيْكَ حَقًّا، وَلِأَهْلِكَ عَلَيْكَ حَقًّا، فَأَعْطِ كُلَّ ذِي حَقٍّ حَقَّهُ، فَأَتَى النَّبِيَّ ﷺ فَذَكَرَ ذَلِكَ لَهُ، فَقَالَ النَّبِيُّ ﷺ: «صَدَقَ سَلْمَانُ»