Sayyiduna Ibn Abbas (may Allah be pleased with them both) used to say that the polytheists always wished that the Persians would prevail over the Romans, because the Persians were idolaters, while the Muslims wished that the Romans would prevail over the Persians because they were People of the Book. They mentioned this to Sayyiduna Abu Bakr as-Siddiq (may Allah be pleased with him), and Sayyiduna Abu Bakr (may Allah be pleased with him) mentioned it to the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said: "The Romans will be victorious." Sayyiduna Abu Bakr (may Allah be pleased with him) mentioned this prophecy before the Quraysh. They said: Set a term between us and you; if, according to our view, the Persians prevail, you will give us such and such, and if, according to your view, the Romans prevail, we will give you such and such. Sayyiduna Abu Bakr as-Siddiq (may Allah be pleased with him) set a term of five years, but during that period the Romans did not appear to be victorious, so he mentioned this to the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said: "Why did you not set a term within ten years?" Sa'id bin Jubayr (may Allah have mercy on him) says that in fact, the word «بضع» that appears in the Qur'an applies to anything less than ten. Thus, within that period, the Romans became victorious, and this is the background of the opening verses of Surah Ar-Rum.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Two Muslims met at the gate of Paradise; in the world, one of them was wealthy and the other was poor. The poor one entered Paradise, and the wealthy one was held back, and he was kept waiting as long as Allah willed. Then he too entered Paradise. There he met that poor man. The poor man asked him, 'Brother! What caused you to be so late? By Allah! You were so delayed that I began to worry.' He replied, 'Brother! After you, I was held back in such a way that it was an extremely difficult and unpleasant stage, and before reaching you, so much sweat poured from my body that if there had been a thousand hungry and thirsty camels, and they had drunk that sweat instead of water, they would have been satisfied.'"

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) forbade the use of (drinks prepared in) dabba’, hantam, naqir, and muzaffat, and also forbade mixing raisins and dates together to make nabidh. The narrator asked Sayyiduna Ibn Abbas (may Allah be pleased with them both): Tell me, if a person puts nabidh in a green earthenware jug like a bottle in the morning and drinks it at night, what is the ruling? He replied: Will you not refrain from that which the Prophet (peace and blessings be upon him) forbade?

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that once the Prophet (peace and blessings be upon him), due to some ailment, performed Tawaf while riding his camel, and he touched the Black Stone with the stick that he had with him. Then, after completing the Tawaf, he made his camel sit down and performed two units of prayer for Tawaf.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "No man should lie down with another man who is naked, and no woman should lie down with another woman who is naked."

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that when the command regarding the prohibition of alcohol was revealed, the noble Companions (may Allah be pleased with them) submitted: O Messenger of Allah (peace and blessings be upon him)! What will happen to our brothers who passed away before this prohibition and used to drink it? Upon this, the following verse was revealed: «‏‏‏‏﴿لَيْسَ عَلَى الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ جُنَاحٌ فِيمَا طَعِمُوا﴾ [المائدة: 93] » "There is no blame upon those who believe and do righteous deeds for what they consumed (or drank) before."

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that when the command for changing the Qiblah was revealed, the people said: O Messenger of Allah! What will happen to our companions who used to pray facing Bayt al-Maqdis and passed away in that state? Upon this, the following verse was revealed: «﴿وَمَا كَانَ اللّٰهُ لِيُضِيعَ إِيمَانَكُمْ﴾ [البقرة: 143] » "Allah is not one to waste your prayers."

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) used to pray three rak'ahs of Witr and in them he would recite Surah Al-A'la, Surah Al-Kafiroon, and Surah Al-Ikhlas (in order).

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "I have been commanded to prostrate on seven bones," then he pointed towards the nose, both hands, both knees, and the toes of both feet, "and it is forbidden to gather up clothes and hair during prayer."

Abu Nadrah (may Allah have mercy on him) says that once Sayyiduna Ibn Abbas (may Allah be pleased with them both) was present on the pulpit of the central mosque of Basra. I heard him saying that the Prophet (peace and blessings be upon him) used to seek refuge from four things after every prayer and used to say: «اَللّٰهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ عَذَابِ الْقَبْرِ اَللّٰهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ عَذَابِ النَّارِ اَللّٰهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ الْفِتَنِ مَا ظَهَرَ مِنْهَا وَمَا بَطَنَ اَللّٰهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ فِتْنَةِ الْأَعْوَرِ الْكَذَّابِ» "I seek refuge with Allah from the punishment of the grave, I seek refuge with Allah from the punishment of Hell, I seek refuge with Allah from the trials of life and death, and I seek refuge with Allah from the trial of the false messiah, the one-eyed Dajjal, who will be a great liar."