Ṣaḥīḥ Muslim Ḥadīth [1893] – One Who Guides to Something Good…

وحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَأَبُو كُرَيْبٍ، وَابْنُ أَبِي عُمَرَ، وَاللَّفْظُ لِأَبِي كُرَيْبٍ، قَالُوا: حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الْأَعْمَشِ، عَنْ أَبِي عَمْرٍو الشَّيْبَانِيِّ، عَنْ أَبِي مَسْعُودٍ الْأَنْصَارِيِّ، قَالَ: جَاءَ رَجُلٌ إِلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، فَقَالَ: إِنِّي أُبْدِعَ بِي فَاحْمِلْنِي، فَقَالَ: مَا عِنْدِي، فَقَالَ رَجُلٌ: يَا رَسُولَ اللَّهِ، أَنَا أَدُلُّهُ عَلَى مَنْ يَحْمِلُهُ، فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:‏‏ مَنْ دَلَّ عَلَى خَيْرٍ فَلَهُ مِثْلُ أَجْرِ فَاعِلِهِ

Book [33]: The book of government
Chapter [38]: The virtues of helping the warrior who is fighting in the cause of Allāh with mounts etc., and looking after his family in his absence

Ḥadīth [1893]: It has been narrated on the authority of Abī Mas’ūd al-Anṣārī (may Allāh be pleased with him) who said: A man came to the Messenger of Allah (peace and blessings of Allāh be upon him) and said: My riding beast has been killed, so give me some animal to ride upon. He (the Prophet) said: I have none with me. A man said: Messenger of Allāh, I can guide him to one who will provide him with a riding beast. The Messenger of Allāh (peace and blessings of Allāh be upon him) said: “One who guides to something good has a reward similar to that of its doer.”