Devi Bhagavata Purana (aka Shrimad Devi Bhagvatam and the Devi Bhagavatam, Śrīmad Bhāgavata Mahā Purāṇa)
Book 11 discusses Sadachara (virtues) and Dharma to self as an individual. It also describes use of Rudrakshas as rosary beads.
Book 11, Chapter 3
He who holds thirty-two Rudrâksa beads on his neck, forty on his head, six on each ear (12 on two ears), twenty four beads on two hands (twelve on each hand) thirty-two beads on two arms (sixteen on each), one bead on each eye and one bead on the hair on the crown, and one hundred and eight beads on the breast, (251 in all) becomes himself Mahâ Deva.
sacred-texts.com/…
Shiva Purana / Vidyeśvara Saṁhitā / Chapter 25 – The greatness of Rudrākṣa / Chapter 25 / no. 37-39:
‘One Rudrākṣa shall be worn on the tuft, forty on the forehead, thirty-two round the neck; hundred and eight over the chest; six in each of the ears; sixteen round each of the arms; O lord of sages, according to the measurement of the forearms, twelve or twice that number shall be worn there. A person who wears so many, out of love, is a great devotee of Śiva…’
