Devibhagavatapurana 11.4.36

11.4.36

pūjyate santataṃ devaiḥ prāpyate ca parā gatiḥ |
rudrākṣa ekaḥ śirasā dhāryo bhaktyā dvijottamaiḥ ||

The Devas always worship the Rudrâksa seed; the highest goal is attained by wearing the Rudrâksam. The Brâhmanas should hold on their heads at least one Rudrâksam with devotion. A rosary of twenty-six Rudrâksams is to be made and tied on the head. Similarly a rosary of fifty seeds is to be worn and suspended on the breast; sixteen each on each of the two arms; twenty-four Rudrâksams to be worn on the wrists, twelve on each. O Sadânana! If a rosary be made of one hundred and eight, fifty or twenty-seven Rudrâksams and if japam be done with that, immeasurable merits are obtained. If anybody wears a rosary of one hundred and eight seeds, he gets at every moment the fruit of performing the As'vamedha sacrifices and uplifts his twenty-one generations and finally he resides in the S’iva Loka.
Here ends the Fourth Chapter of the Eleventh Book on the Greatness of the Rudrâksam in the Mahâpuranam S'rî Mad Devî Bhâgavatam of 18,000 verses by Mahârsi Veda Vyâsa.