Hadithcore
Mishkat al-Masabih, 4441

Abu Musa reported God’s messenger as saying, “God does not accept the prayer of a man who has any <i>khaluq</i> on his body.” Abu Dawud transmitted it.

وَعَنْ أَبِي مُوسَى قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لَا يَقْبَلُ اللَّهُ صَلَاةَ رَجُلٍ فِي جَسَدِهِ شَيْءٌ مِنْ خَلُوقٍ» . رَوَاهُ أَبُو دَاوُد

References1 variant
In-Book Reference
Book 22, Hadith 130