Answered by Shaykh Amjad Rasheed
What is the ruling on using a misbaha (prayer beads) that is made of elephant bone?
In our school, elephants are animals that cant be eaten, so even if it is slaughtered, it is filth. So, if there is moisture on the hand or on the misbaha, the hand becomes filthy. And putting najasa on oneself (tadammukh), in our school, is haram, unless for a need. This is not considered a need because there are many misbahas available that are not made of this. However, if there isnt any moisture that would transfer the filth, it is permissible to use it.
[Translated by Sr. Shazia Ahmad]