Man Lā Yaḥḍuruh al-Faqīh
Hadith 4223953 - وَ فِي رِوَايَةِ زُرَارَةَ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ قَالَ : "لاَ بَأْسَ بِالسَّلَمِ فِي اَلْمَتَاعِ إِذَا وَصَفْتَ اَلطُّولَ وَ اَلْعَرْضَ وَ فِي اَلْحَيَوَانِ إِذَا وَصَفْتَ أَسْنَانَهُ".
Hadith.3953 - In a narration from Zurarah who reported from Abu Ja'far Imam Muhammad ibn Ali Al-Baqir (as):
"There is no harm in Salam (advance payment) for goods if you describe their length and width, and for animals if you describe their age."