Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that the Prophet (peace and blessings be upon him) said: "Board the sea only to go for Hajj or to take part in fighting."
Al-Bazzar recorded it. Its chain contains a narrator, Layth bin Abi Sulaym, who is a mudallis (one who conceals defects in the chain). The rest of its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجهاد / 9452
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه البزار فى المسند (1668) ، أخرجه البحر الزخار المعروف بمسند البزار 10 - 18 برقم: 5897»