Mahabharat
तेषां कालातिरेकेण जयॊतिषां च वयतिक्रमात पञ्चमे पञ्चमे वर्षे दवौ मासाव उपजायतः ॥ ४-४७-३ ॥
'Due to the fractional excesses and deviations of these celestial bodies, an additional two months are added every five years.' ॥ 4-47-3 ॥
english translation
teSAM kAlAtirekeNa jayòtiSAM ca vayatikramAta paJcame paJcame varSe davau mAsAva upajAyataH ॥ 4-47-3 ॥
hk transliteration by Sanscript