Jataka Tattva · by Mahadeva
Chapter 7 · Mind, Learning and Children: the 5th House
पञ्चमविवेकः
सुताङ्गेशौ केन्द्रगौ शुभान्वितौ धनपे बलिनि पुत्राप्तिः ।
Say the 5th and 1st lords are in the 1st, 4th, 7th or 10th, with good planets. Say the 2nd lord is strong. Then a son is gained.
पुत्रेशांशेशे शुभयुतदृष्टे पुत्राप्तिः ।
Take the navamsha (one-ninth part of a sign) of the 5th lord. Say its lord is joined or aspected by good planets. Then a son is gained.
धर्माङ्गेशौ सप्तमे धनेशेऽङ्गे पुत्राप्तिः ।
Say the lords of the 9th and 1st houses are in the 7th house. Say the 2nd lord is in the 1st house. Then a son is gained.
सुतेशे मृद्वंशादिगे पुत्राप्तिः ।
Say the 5th lord is in the Mridu shashtyamsha (one-sixtieth part of a sign) or one like it. Then a son is gained.