Natyashastra
द्वे नृत्तकरणे चैव भवतो नृत्तमातृका । द्वाभ्यां त्रिभिश्चतुर्भिर्वाप्यङ्गहारस्तु मातृभिः ॥ ३१॥
"There are two types of dance movements that form the foundation of dance. Using two, three, or four of these foundational movements, an Angahara (dance sequence) is formed."
english translation
dve nRttakaraNe caiva bhavato nRttamAtRkA । dvAbhyAM tribhizcaturbhirvApyaGgahArastu mAtRbhiH ॥ 31॥
hk transliteration by Sanscript