It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him) would sometimes plant a spear as a sutrah and perform prayer.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 4681
Hadith Gradingحکم دارالسلام:إسناده صحيح خ: 498، م: 501،