Brihat Parashara Hora Shastra
लग्नेशे नीचराशिस्थे धनेशे निधनं गते । त्रयोदशे तु सम्प्राप्ते कलत्रस्य मृतिर्भवेत् ॥ ३९॥
Should the ascendat Lord be in his Rāśi of debilitation, as Dhan Lord is in Randhr, loss of wife will occur in the 13th year of age.
english translation
lagneze nIcarAzisthe dhaneze nidhanaM gate । trayodaze tu samprApte kalatrasya mRtirbhavet ॥ 39॥
hk transliteration by Sanscript