The
has thoughts of compassion (karvndcitta) with regard to the forty-eight parts of the world (twenty places in Kamadhatu, sixteen in Rupadhatu, four in Arupyadhatu, plus the eight cold hells): the same number of volitions are associated with these thoughts: plus a forty-ninth volition which has the Buddha for its object: "In the manner in which he liberates beings"; plus a fiftieth thought: "May I liberate them in the same way!
Abhidharmakosabhasyam-Vol-2-Vasubandhu-Poussin-Pruden-1991