Skandapurana 1.3.11.50

1.3.11.50

rudrākṣadhāraṇaṃ ye ca kurvaṃti śivapūjane..
dāne tapasi tīrthe ca parvakāle hyataṃdritāḥ..
teṣāṃ yatsukṛtaṃ sarvamanaṃtaṃ bhavati dvijāḥ.. 13.50 ..

And those who unwearied wear rudrākṣa beads in the worship of Śiva, / during gift-giving, austerity, at a sacred ford, and on auspicious festive days, / whatever meritorious deed they perform becomes endless, O twice-born.