Mishkat al-Masabih 1552
Anas reported God’s messenger:
as saying, “If anyone performs ablution well and pays a sick visit to his brother Muslim seeking his reward from God, he will be removed a distance of sixty years (here kharif is used in another of its meanings) from jahannam.” 

Abu Dawud transmitted it.
وَعَنْ أَنَسٍ: قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ تَوَضَّأَ فَأَحْسَنَ الْوُضُوءَ وَعَادَ أَخَاهُ الْمُسْلِمَ مُحْتَسِبًا بُوعِدَ مِنْ جَهَنَّمَ مسيرَة سِتِّينَ خَرِيفًا» . رَوَاهُ أَبُو دَاوُد