ENOfficial
Umm Salama said the Prophet (ﷺ) came to visit her when she was veiled and said, “Use one fold, not two.” Abu Dawud transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْ أُمِّ سَلَمَةَ إِنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ دَخَلَ عَلَيْهَا وَهِيَ تَخْتَمِرُ فَقَالَ: «ليَّةً لَا ليَّتينِ» . رَوَاهُ أَبُو دَاوُد
sunnah.com