Mahabharata 7.68.43

न ते स्म शक्याः संख्यातुं व्राताः शतसहस्रशःवृष्टिस्तथाविधा ह्यासीच्छलभानामिवायतिः

na te sma śakyāḥ saṃkhyātuṃ vrātāḥ śatasahasraśaḥvṛṣṭistathāvidhā hyāsīcchalabhānāmivāyatiḥ

Our plain-language meaning of this verse is waiting for scholar review.