Abu Dharr reported God’s messenger as saying, “When you smile in your brother’s face, or enjoin what is reputable, or forbid what is objectionable, or direct someone who has lost his way, or help a man who has bad eyesight, or remove stones, thorns and bones from the road, or pour water from your bucket into your brother’s, it counts to you as sadaqa.” Tirmidhi transmitted it, saying this is a gharib tradition.
Source: sunnah.com
Other translations
Arabic
وَعَنْ أَبِي ذَرٍّ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «تَبَسُّمُكَ فِي وَجْهِ أَخِيك صَدَقَة وأمرك بِالْمَعْرُوفِ صَدَقَة ن وَنَهْيُكَ عَنِ الْمُنْكَرِ صَدَقَةٌ وَإِرْشَادُكَ الرَّجُلَ فِي أَرْضِ الضَّلَالِ لَكَ صَدَقَةٌ وَنَصْرُكَ الرَّجُلَ الرَّدِيءَ الْبَصَرِ لَكَ صَدَقَةٌ وَإِمَاطَتُكَ الْحَجَرَ وَالشَّوْكَ وَالْعَظْمَ عَن الطَّرِيقِ لَكَ صَدَقَةٌ وَإِفْرَاغُكَ مِنْ دَلْوِكَ فِي دَلْوِ أَخِيكَ لَكَ صَدَقَةٌ» . رَوَاهُ التِّرْمِذِيُّ وَقَالَ: هَذَا حَدِيثٌ غَرِيبٌ
sunnah.com