Natyashastra
अतिक्रान्तैर्पदैर्विप्रा द्वितालान्तरगामिभिः । यतीनां श्रमणानां च ये चान्ये तपसि स्थिताः ॥ ७९॥
The Brahmins, Yatis, Śramaṇas, and others who are engaged in austerities, should walk with steps that are Atikrānta (long strides), each step covering a distance of two Tālas.
english translation
atikrAntairpadairviprA dvitAlAntaragAmibhiH । yatInAM zramaNAnAM ca ye cAnye tapasi sthitAH ॥ 79॥
hk transliteration by Sanscript