Theragāthā 1.37 Ekakanipāta Catutthavagga Kumāputtasahāyakattheragāthā “Nānājanapadaṁ yanti, Vicarantā asaññatā; Samādhiñca virādhenti, Kiṁsu raṭṭhacariyā karissati; Tasmā vineyya sārambhaṁ, Jhāyeyya apurakkhato”ti. … Kumāputtattherassa sahāyako thero ….
The Verses of the Elder Kumāputta's Companion
Those who wander unrestrained, traveling through various regions, fail to attain concentration. What will wandering the country achieve?
Therefore, having subdued restlessness, one should practicer without delay.