Samudrika (Garga) 1.11

1.11

liṅge'lpe dhanavānapatyarahitaḥ sthūle vihīno dhanairmeḍhe vāmanate sutārtharahito vakre'nyathā putravān
dāridryaṃ vinate tvadhotpatanayo liṅge śirāsantate
sthūlagranthiyute sukhī mṛdukarotyantaṃ pramehādibhiḥ

With a small penis, one is wealthy and childless; with a thick one, devoid of wealth;
when the penis bends to the left, devoid of sons and wealth; if bent otherwise, he possesses sons.
When bent downwards, there is poverty; when covered with veins, sons die;
with thick knots, one is happy; a soft one brings death through urinary diseases and the like.