Brihat Samhita
समागमे पतति जलं ज्ञशुक्रयोर्ज्ञजीवयोर्गुरुसितयोश्च सङ्गमे । यमारयोः पवनहुताशजं भयं ह्यदृष्टयोरसहितयोश्च सद्ग्रहैः ॥ २८-२१ ॥
There will be rain if Mercury and Venus, or Mercury and Jupiter, or Venus and Jupiter should meet; if Saturn and Mars should meet and if they should not be accompanied by or within view of benefíc planets, there will be fear from storms and fire.
english translation
samAgame patati jalaM jJazukrayorjJajIvayorgurusitayozca saGgame । yamArayoH pavanahutAzajaM bhayaM hyadRSTayorasahitayozca sadgrahaiH ॥ 28-21 ॥
hk transliteration by Sanscript