Matsya Purana 266.67

266.67

annaṃ vastrañca dātavyaṃ puṇyāha jayamaṅgalam.
triḥ pañca sapta daśa vā dināni syāt mahotsavaḥ .. 266.66

Festivities should be held for 3, 5, 7 or 10 days at the time of the consecration of the idol when grain, cloth, etc., should be freely distributed The Kîrtan (singing the name of Hari), reciting Râmâyaṇa, Kathakatâ and other meetings should be performed —66