Mahabharata 12.76.13
पर्जन्यमिव भूतानि महाद्रुममिव द्विजाःनरास्तमुपजीवन्ति नृपं सर्वार्थसाधकम्
parjanyamiva bhūtāni mahādrumamiva dvijāḥnarāstamupajīvanti nṛpaṃ sarvārthasādhakam
Our plain-language meaning of this verse is waiting for scholar review.