عَنْ أُسَامَةَ بْنِ شَرِيكٍ قَالَ: قَالُوا: يَا رَسُول الله أفنتداوى؟ قَالَ: «نعم يَا عبد اللَّهِ تَدَاوَوْا فَإِنَّ اللَّهَ لَمْ يَضَعْ دَاءً إِلَّا وَضَعَ لَهُ شِفَاءً غَيْرَ دَاءٍ وَاحِدٍ الْهَرم» . رَوَاهُ أَحْمد وَالتِّرْمِذِيّ وَأَبُو دَاوُد

Salma, the Prophet’s woman-servant, told that no one complained to God’s messenger of a headache without his telling him to get cupped, or of a pain in his legs without his telling him to dye them with henna. Abu Dawud transmitted it.