Śatapatha Brāhmaṇa ("of a hundred paths") 10.2.6.5

10.2.6.5

tadetadvasucitraṃ rādhaḥ tadeṣa savitā vibhaktābhyaḥ prajābhyo vibhajatyapyoṣadhibhyo'pi vanaspatibhyo bhūya-iva ha tvekābhyaḥ prayacati kanīya ivaikābhyastadyābhyo bhūyaḥ prayacati tā jyoktamāṃ jīvanti yābhyaḥ kanīyaḥ kanīyastāḥ

Now that same boon (the immortal light), bright with wealth, he, Savitri (the sun), distributes among the distributed creatures, and among plants and trees, too; and to some, indeed, he gives more of it, and to some less; and they to whom he gives more of it live longest, and they to whom he gives less live less long.