Firishta's History (Gulshan-i Ibrāhīmī) 4.1.5

4.1.5

Jeipal, the son of Hutpal, of the Brahmin tribe, reigned at that time over the country, extending in length from Surhind to Lumghan, and in breadth from the kingdom of Kashmeer to Moultan. He resided in the fort of Bitunda for the convenience of taking steps for opposing the Mahomedans; and finding, by their reiterated invasions, that he was unlikely to enjoy tranquillity at home, he raised a great army, and brought together numerous elephants, with a design to attack them in their own country. Subooktugeen, receiving intelligence of Jeipal's intentions, marched another force towards India. The two armies coming in sight of each other, on the confines of Lumghan, some skirmishes ensued, and Mahmood, the son of Subooktugeen, though then but a boy, gave signal proofs of his valour and conduct. Many days elapsed without the opponents having engaged each other, when it was mentioned to Mahmood, that in the camp of Jeipal was a spring, into which, if a mixture of ordure should be thrown the sky would immediately become overcast, and a dreadful storm of hail and wind arise. Mahmood having caused this to be done, the effects became visible; for instantly the sky lowered, and thunder, lightning, wind, and hail succeeded, turning the day into night, and spreading horror and destruction around; insomuch that a great part of the cattle was killed, and some thousands of the soldiers of both armies perished.