I saw Ibn Umar when a man beside him sneezed and said, "Praise be to Allah, and peace be upon the Messenger of Allah."Ibn Umar responded, "I too say, 'Peace be upon the Messenger of Allah ﷺ,' but this is not what the Messenger of Allah ﷺ taught us. The Messenger of Allah instructed us to say when we sneeze, 'Praise be to Allah in every circumstance.'"
رأيت ابن عمر، وقد عطس رجل إلى جنبه، فقال: الحمد لله وسلام على رسول الله، فقال ابن عمر: وأنا أقول: السلام على رسول الله ﷺ، ولكن ليس هكذا أمرنا رسول الله ﷺ أمرنا رسول الله أن نقول إذا عطسنا: الحمد لله على كل حال.
Tabarani related it in Awsat (5694) from Muhammad bin Abdullah Hadrami, who said, Sahl bin Salih Antaki told us, Walid bin Muslim told us, Saeed bin Abdul-Aziz told us, from Sulayman bin Musa, from Nafi, and he mentioned it. Tabarani said, "No one related this hadith from Saeed bin Abdul-Aziz except Walid bin Muslim, and Sahl bin Salih related it alone."I say, this chain is hasan because of Sahl bin Salih Antaki and Sulayman bin Musa (that is, al-Ashdaq), for both of them make the hadith hasan. Tirmidhi (2738), Harith in his Musnad (Bughyat Bahith - 807), and Hakim (4/265) all related it, all of them through the route of Ziyad bin Rabi, who said, Hadrami, freedman of the family of Jarud, told us, from Nafi, and he mentioned it. But in Hakim's version it is Hadrami bin Lahiq. Tirmidhi said, "This is a gharib hadith, we do not know it except from the hadith of Ziyad bin Rabi." Hakim said, "This hadith has a sahih chain, and it is gharib among the narrations of Nafi's teachers."I say, in its chain is Hadrami, freedman of the family of Jarud, whom no one has confirmed as reliable except that Ibn Hibban mentioned him among his reliable narrators. That is why Ibn Hajar said in Taqrib, "acceptable," meaning when corroborated, and indeed he has been corroborated. As for Hakim, he graded it sahih because in his version it appears as Hadrami bin Lahiq, and this is hasan al-hadith, and Hakim is among those who do not distinguish between sahih and hasan.Something contrary to this has been related from Ibn Umar, but its chain is weak. As for what has been related from Hilal bin Yasaf, who said, We were with Salim bin Ubayd when a man among the group sneezed and said, "Peace be upon you." Salim said, "And upon you and your mother." Then afterward he said, "Perhaps you found something objectionable in what I said to you." The man said, "I wish you had not mentioned my mother, neither for good nor for ill." Salim said, "I only said to you what the Messenger of Allah ﷺ said. We were once with the Messenger of Allah ﷺ when a man among the group sneezed and said, 'Peace be upon you,' and the Messenger of Allah ﷺ said, 'And upon you and your mother.'" Then he said, "When one of you sneezes, let him praise Allah," and he mentioned some words of praise, "and let those present say to him, 'May Allah have mercy on you,' and let him reply to them, 'May Allah forgive us and you.'"Abu Dawud (5031), Tirmidhi (2704), and Nasai in Amal al-Yawm wal-Layla (225) related it, all of them through the route of Mansur, from Hilal bin Yasaf, and he mentioned it. Tirmidhi said, "This is a hadith over whose narration from Mansur they differed, and some inserted a man between Hilal bin Yasaf and Salim." End of quote.Nasai, Hakim, and others have affirmed decisively that this is a mistake, and Hakim stated explicitly that Hilal bin Yasaf did not meet Salim bin Ubayd. In another version of this hadith it has come that there is a man between Hilal and Salim, and in some versions that there are two men between them, as Ahmad (23853) and Nasai in Amal al-Yawm wal-Layla (229) related it, both of them from the hadith of Yahya bin Saeed, from Sufyan, from Mansur, from Hilal bin Yasaf, from a man, from another, who said, We were with Salim... and he related something similar.Nasai said, "This is what is correct according to us, and the first version is a mistake."And Allah knows best.