Al-Kāfi
Hadith 5162- عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ فَضَّالٍ عَنْ ثَعْلَبَةَ بْنِ مَيْمُونٍ عَنْ هُذَيْلٍ عَنْ أَبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) قَالَ إِذَا اشْتَرَيْتَ جَارِيَةً فَقُلِ اللهُمَّ إِنِّي أَسْتَشِيرُكَ وَأَسْتَخِيرُكَ.
2. A number of our people have narrated from Ahmad ibn Muhammad from ibn Faddal from Tha’labah ibn Maymun from Hudhayl who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘When you want to buy a slave-girl say this, ‘O Allah, I consult You and pray to You to grant me what is good.’”