Rigveda 2.5.6
यदी॑ मा॒तुरुप॒ स्वसा॑ घृ॒तं भर॒न्त्यस्थि॑त ।तासा॑मध्व॒र्युराग॑तौ॒ यवो॑ वृ॒ष्टीव॑ मोदते॥
yadī māturupa svasā ghṛtaṃ bharantyasthita |tāsāmadhvaryurāgatau yavo vṛṣṭīva modate ||
Our plain-language meaning of this verse is waiting for scholar review.