كتاب اللباس
Read the English translation first, with the original Arabic directly underneath.
Narrated AbuSa'id al-Khudri:
When the Messenger of Allah (ﷺ) put on a new garment he mentioned it by name, turban or shirt, and would then say: O Allah, praise be to You! as You have clothed me with it, I ask You for its good and the good of that for which it was made, and I seek refuge in You from its evil and the evil of that for which it was made. Abu Nadrah said: When any of the Companions of the Prophet (ﷺ) put on a new garment, he was told: May you wear it out and may Allah give you another in its place.
اللَّهُمَّ لَكَ الْحَمْدُ أَنْتَ كَسَوْتَنِيهِ أَسْأَلُكَ مِنْ خَيْرِهِ وَخَيْرِ مَا صُنِعَ لَهُ وَأَعُوذُ بِكَ مِنْ شَرِّهِ وَشَرِّ مَا صُنِعَ لَهُ