Hadith 788
Umm Salamah (May Allah be pleased with her) reported:
عن أم سلمة رضى الله عنها قالت: كان أحب الثياب إلى رسول الله صلى الله عليه وسلم القميص.((رواه أبو داود والترمذي))
Out of all garments, the Messenger of Allah (ﷺ) liked the Qamees the best. [Abu Dawud and At-Tirmidhi ]. Editor's note: The Qamees is a modest, traditional outfit thought to resemble what is now referred to as a thawb.
In plain words
Of all garments, he liked the qamees best, a modest full-length shirt close to today's thawb. A quiet pointer toward dress that is modest, comfortable, and dignified.
Reference : Riyad as-Salihin 788 In-book reference : Book 3, Hadith 11