Sayyiduna Abu Hurairah (may Allah be pleased with him) disliked Sadl, and he attributed this dislike to the Messenger of Allah (peace and blessings be upon him).
Hadith Referenceسنن دارمي / من كتاب الصللاة / 1417
Hadith Gradingتحقیق (حسین سلیم أسد الدارانی):في اسناده علتان: سعيد بن عامر متأخر السماع من سعيد بن أبي عروبة وضعف عسل بن سفيان، [مكتبه الشامله نمبر: 1419]
Hadith Takhrijاس روایت کی سند میں عسل بن سفیان ضعیف ہیں، لیکن اس حدیث کے شواہد کے پیشِ نظر حسن کے درجے کو پہنچ جاتی ہے۔ دیکھئے: [ أبوداؤد 643] ، [ترمذي 376] ، [ابن حبان 2289] ، [موارد الظمآن 478، 479]
Brief Explanation
(Commentary on Hadith 1416)
Imam Khattabi rahimahullah said: "Sadl" is when one lets the garment hang down out of pride and arrogance, so that it drags on the ground.
It is stated in "Nihayah": Sadl is when one drapes the garment over from above and lets it hang down, as the Jews do.
Some scholars have said: To cover the head with a sheet and let it hang down without wrapping it around oneself (not tying it).
Some have said: In the case of a jubba (cloak), sadl is to wear it without putting the hands into the sleeves (as stated by Allamah Waheed al-Zaman).
In some ahadith, there is explicit prohibition of sadl, as can be known from the takhreej (referencing of hadith sources).