Bhishma said He will be considered as one who is always fasting if he eats once during the day and once during the night at the fixed hours without eating anything in the interim.
भीष्म उवाच अन्तरा प्रातराशं च सायमाशं तथैव च। सदोपवासी स भवेद् योन भुङ्क्तेऽन्तरा पुनः॥