Charak Samhita
अतिव्यवायाद्व्यायामादसात्म्यानां च सेवनात् । अकाले वाऽप्ययोनौ वा मैथुनं न च गच्छतः ॥१३५॥
Excess intercourse, excess exercise, consumption of unsuitable food, untimely coitus, other than in vagina, or complete abstinence from it,
english translation
ativyavAyAdvyAyAmAdasAtmyAnAM ca sevanAt । akAle vA'pyayonau vA maithunaM na ca gacchataH ॥135॥
hk transliteration by Sanscript