Sahih Ibn Khuzaymah

By this, the Prophet ﷺ meant some prayers, not all. The Prophet ﷺ meant four prayers other than the Maghrib prayer. Similarly, when the Prophet ﷺ said, "Then an addition was made in the prayer during residence," by this the Prophet ﷺ meant the three prayers other than Fajr and Maghrib. And the explanation of the evidence for the statement of Sayyiduna Ibn Abbas (may Allah be pleased with them both) that Allah Almighty made four rak‘ahs obligatory upon you through the tongue of your Prophet ﷺ during residence, by this the Prophet ﷺ meant the prayers other than Maghrib and Fajr. Likewise, when he said that in travel there are two rak‘ahs, he meant the prayers other than Maghrib. This is of the same kind as when we say in our books that these words are general but their meaning is specific.