Surah Al-Baqarah 2:185
It was) the month of Ramadhan in which was revealed the Qur’aan, a guidance for mankind and clear proofs for the guidance and the criterion (between right and wrong). So whoever of you sights (the crescent on the first night of) the month, he must observe fast that month and whoever is ill or on a journey – then an equal number of other days. Allah intends for you ease and does not intend for you hardship and (wants) for you to complete the period and to glorify Allah for that (to) which He has guided you, and perhaps you will be grateful".
Tomorrow, we puasa. ^^