Skandapurana 1.4.39.150

1.4.39.150

nenduṃ na tārakāścaiva nādayennātmanaḥ śiraḥ..
svasrā dihitrā mātrā vā naikāṃtāsana mācaret.. 41.150 ..

nor at the moon, nor at the stars, nor strike his own head. / He should not sit in solitude with his sister, daughter, or mother;