Garudapurana 1.61.15

1.61.15

mandākārai ca kujaḥ ṣaṣṭhe gurucandrau ca saptame /
jñaśukrāvaṣṭame śreṣṭhau navamastho guruḥ śubhaḥ //

Saturn, the Sun, and Mars in the sixth; Jupiter and the Moon in the seventh;
Mercury and Venus are best in the eighth; Jupiter stationed in the ninth is auspicious;