Brihat Parashara Hora Shastra
चतुर्थे दशमे पापौ द्वादशे च यदा स्थितौ। पितरं मातरं हत्वा देशाद्देशान्तरं व्रजेत्॥ ४१॥
If Bandhu, Karm and Vyaya Bhava are all occupied by malefics, both the parents will leave the child to its own fate and wander from place to place.
english translation
caturthe dazame pApau dvAdaze ca yadA sthitau। pitaraM mAtaraM hatvA dezAddezAntaraM vrajet॥ 41॥
hk transliteration by Sanscript