When the one praying misses performing them due to sleep or remains asleep, and wakes up after the sun has risen.

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that we camped for rest with the Messenger of Allah (peace and blessings be upon him) in the last part of the night, then we only woke up after the sun had risen. So the Messenger of Allah (peace and blessings be upon him) said: "Everyone, take hold of your mount's reins (and move from here), for Satan has come to us at this place (and our prayer has been missed)." Thus, we complied with the order. (After moving a little ahead) the Prophet (peace and blessings be upon him) asked for water, performed ablution, then after the call to prayer, offered two units of Sunnah, and led the Fajr prayer.