1. Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan ibn Yahya from ‘Abd al-Hamid ibn Sa‘d who has said the following
“I once asked abu Ibrahim (a.s.), about the bones of elephants; if it was permissible to sell or buy the combs which were made thereof. He (the Imam) said, ‘It is not unlawful. My father (a.s.), had such a comb or combs.”’