Charak Samhita
योगा ह्यायुःप्रकर्षार्था जरारोगनिबर्हणाः। मनःशरीरशुद्धानां सिध्यन्ति प्रयतात्मनाम् ॥३७॥
The treatment meant for providing longevity and for relieving senility and disease succeed in persons having purified mind and body controlled self.
english translation
yogA hyAyuHprakarSArthA jarAroganibarhaNAH। manaHzarIrazuddhAnAM sidhyanti prayatAtmanAm ॥37॥
hk transliteration by Sanscript